CONTENTS. Ill 



Page. 



The fertilizing value of pigeon manure, LoUi 125 



Top-dressing sugar beets with liquid manure, Kausek 125 



Top-dressing of the sugar beet with liquid manure, Kuhnert 125 



The water capacity of peat litter and its determination, Tacke and Minssen. . . 125 



The nitrogen problem in crop production, Russell 125 



Manufacture of air nitrate fertilizers, Bordewich and Webster 125 



The nitrate deposits and industry in Chile, Lema 126 



Calcium and sodium nitrates, Urban 126 



Investigations on denitrification, Doyarenko 126 



Comparative value of nitrate of soda and sulphate of ammonia as manures 126 



Application of sulphate of ammonia on light soils 126 



The physiological characteristics of ammonium salts, Prianishnikov 127 



Experiments with different organic nitrogenous fertilizers, Doyarenko 127 



Nitrogen and nitric acid, Carl 127 



Fixation of atmospheric nitrogen 127 



The manufacture of air nitrate, Schonherr 1 27 



The manufacture of calcium carbid 127 



On calcium cyanamid, Prianishnikov 127 



The loss of nitrogen in the storage of calcium cyanamid, Yakushkin 128 



Dicyandiamid, Yakushkin .- 128 



Potash silicate, Barcia y Trelles 128 



Sand cultures with various potash minerals, Doyarenko 128 



Sand cultures with raw phosphates, Shulov 128 



The action of podzol soils on raw phosphates, Doyarenko 129 



Phosphorus and humus in relation to Illinois soils, Hopkins 129 



Florida phosphates, Vogt 129 



Russian superphosphates * 1 29 



The reduction of bones by alkalis, Sokolov 129 



The free lime and soluble phosphates in basic slag, Morison 129 



On the behavior of aluminum and iron phosphate, Prianishnikov 129 



The influence of calcium carbonate on calcium phosphates, Prianishnikov 130 



Lime experiments, Prianishnikov 130 



The definition of marl, Stewart 130 



The agricultural ut ilization of the town garbage in Breslau 130 



Fertilizers, Cathcart 130 



Fertilizers as sold, 1909, McGill 130 



Fertilizers in South Australia 131 



AGRICULTURAL BOTANY. 



The role and function of mineral salts in the life of the plant, Deleano 131 



The transfer of calcium and magnesium ions from plant cells, Niklewski 131 



The biology of chlorophylls, Stahl 131 



A study of chlorophyll bodies, d'Arbaumont 131 



Synthesis and chlorophyll assimilation, Lefevre 132 



Influence of radium radiations on the functions of plants, Hebert and Kling. . . 132 



The relation between carbohydrates and the formation of anthocyanin. Combes. 132 



Oxidases and peroxidiastases, Brocq-Rousseu and Gain 133 



The occurrence of urease in higher plants, Takeuchi 133 



An experimental study of acclimatization, Harshberger 133 



Studies in symbiosis, Bernard 133 



A bibliography of mycological literature, Lindau and Sydow 133 



FIELD CROPS. 



Dry farming: Its principles and practice, MacDonald 133 



Seed time and harvest time of crops grown in Bengal 134 



Notes on some introduced plants of southern California, I, Parish 134 



Report of the animal husbandman, Minkler 134 



Irrigation of alfalfa, Fortier 135 



Barley cultivation in Ireland, McMullen 135 



Twenty-three years' field trials with six-rowed barley, Mortensen and Hansen. 135 



Results of experiments with domestic and foreign barleys, 1908, Neumann 135 



Report of society for encouragement of culture of brewing barley, Kreiss et ai. 135 



Caravonica cot ton 136 



The results on the flax experiment farms of Silesia in 1908 136 



The so-called white wild oats and what they are, Griddle 136 



